Registration Dossier
Registration Dossier
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EC number: 266-841-2 | CAS number: 67662-96-8
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Biodegradability of Pivarose has been investigated according to a modified OECD 301B ready test. In the test conditions, Pivarose undergoes a biodegradation of 78.9% after 28 days. Pivarose is considered as readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The biodegradability of Pivarose was studied using a sealed vessel that is a CO2 production test based on OECD guideline 301B and studies conducted by the OECD aimed at harmonizing the various tests of ready biodegradability. The test system is closed and is therefore suitable for the examination of volatile materials. Inoculum came from secondary effluent from an unacclimatised activated sludge plant at URL North. Initial nominal concentration of the test substance was 10 mg/l organic carbon. Biodegradation of the test substance is recorded by the evolution of the CO2 during the study. Analysis of both the headspace gas and the liquid medium for CO2/DIC was performed.
Pivarose undergoes 78.9% biodegradation after 28 days and the 10 -day window criterion was met. Therefore, and in accordance with The OECD Guidelines principles, Pivarose is considered as readily biodegradable. Validity criteria are all met, the study is considered as acceptable for the endpoint.
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